I bought it as a second baby carrier (my main one is the classic wrap) so that I can easily put on and take off the baby outside the house without dragging it on the floor while tying it. For example, for running errands to the car or quickly grabbing something near the house.
For this use, I am quite satisfied. The baby is 3 months old and sits relatively well.
If someone wants it for convenience for short distances, it is perfect.
It is not as convenient as the wrap, neither for me nor for the baby, for long walks (or housework) we both get tired relatively quickly, unlike the other one.
The reasons are that the fabric is a bit stiffer than I would like (though of good quality) and it never fits 100% on the body like when you tie it to your measurements. I got the medium size that corresponded to my size and it is a bit big for me. I was a bit between sizes and as the guide says, you should always take the smaller one, but I was afraid that the baby, who is a bit big, wouldn't fit in it.
Conclusion: for me, it is necessary, but for exclusive use in places where I don't have a clean space to tie the wrap, and never for long walks.